How HVAC Techs Can Use Deep Vacuum, Nitrogen & AI Tools to Reduce Callbacks with Jim Bergmann Part 2

In part 2 of this episode of the HVAC Know It All Podcast, host Gary McCreadie continues his conversation with Jim Bergmann, President of measureQuick and Director of New Product Development at Redfish Instruments Inc. In Part 2, they discuss topics like the evolution of vacuuming techniques, moving away from triple evacuation, and why modern two-stage pumps are more efficient. Jim explains how to detect leaks using the decay vacuum method, the importance of nitrogen purging, and how refrigerant and oil behavior affects evacuation times. They also discuss the role of Measure Quick in helping technicians diagnose system issues and communicate better with customers, offering a more accurate approach to repairs and replacements. This conversation is full of tips for improving HVAC service and troubleshooting.

Jim talks about how evacuation techniques have changed over time, moving away from triple evacuation to a single, deeper pull with modern pumps. He explains how refrigerant and oil mix, causing slow evacuation times, and how nitrogen purging can help. Jim also goes over the decay vacuum method for detecting leaks and why using tools like Measure Quick helps HVAC techs identify issues faster, improve system performance, and communicate better with customers, especially when deciding between repairs and replacements.

This episode is packed with HVAC tips, updated vacuum techniques, and smart solutions to help technicians improve system performance, diagnose issues accurately, and understand when to repair or replace equipment with the right tools and methods.

Expect to Learn:

Why single evacuation is more efficient than triple evacuation.
How modern pumps and nitrogen purging improve the evacuation process.
The decay vacuum method for detecting leaks and system issues.
How refrigerant and oil behavior can affect evacuation times.
Why using tools like Measure Quick helps with accurate diagnostics and better communication with customers.

Episode Highlights:

[00:00] – Introduction to the 2nd Part of the Episode with Jim Bergmann

[01:44] - Triple Evacuation Technique Overview

[03:25] - Vacuum Decay Test

[04:47] - Struggles with Refrigerant in Older Systems

[07:05] - Refrigerant Contamination and Improving Vacuum

[08:54] - Oil and Refrigerant Mixtures

[10:21] - Measure Quick: Updates and New Features

[12:53] - Ethical Sales and System Performance

[14:29] - Ethical Sales vs. Quick Fixes in the Industry

[17:05] - Leasing Systems and Quality Installations

[18:36] - Importance of Commissioning Systems for Service Technicians